Fujitsu MHJ2181AT Computer Drive User Manual


 
Device Overview
1-8 C141-E088-03EN
1.5 Acoustic Noise
Table 1.5 lists the acoustic noise specification.
Table 1.5 Acoustic noise specification
Item
Specification
Sound Pressure
Idle mode (DRIVE READY)
30 dBA typical at 1 m
Note:
Measure the noise from the cover top surface.
1.6 Shock and Vibration
Table 1.6 lists the shock and vibration specification.
Table 1.6 Shock and vibration specification
Item
Specification
Vibration (swept sine, one octave per minute)
Operating
Non-operating
5 to 500 Hz, 1.0G 0-peak (MHJ series)
5 to 400 Hz, 1.0G 0-peak (MHK series)
(without non-recovered errors) (9.8 m/s
2
0-peak)
5 to 500 Hz, 5G 0-peak (MHJ series)
5 to 400 Hz, 5G 0-peak (MHK series)
(no damage) (49 m/s
2
0-peak)
Shock (half-sine pulse)
Operating
Non-operating
150G 0-peak (1,470 m/s
2
0-peak)
2 ms duration (without non-recovered errors)
600G 0-peak (5,880 m/s
2
0-peak)
2 ms duration (no damage)
700G 0-peak (6,860 m/s
2
0-peak)
2 ms duration (no damage)
120G 0-peak (1,176 m/s
2
0-peak)
11 ms duration (no damage)
MHK series
MHJ series